Improvement in argand-lamp burners



UNITED STATES PATENT OFFICE.

JIM B. FULLER, OF NOBWICH, CONNECTICUT.

IMPROVEMNT IN ARGAND-LAMP BURNERS.

Specification forming part of Letters Patent No. 131,265, datedSeptember 10, 1872.

Specification describing certain Improvements in Argand-Lamp Burners,invented by JIM B. FULLER, of Norwich, in the county of New London, andState of Connecticut.

First, my improvement consists in a wicktube so constructed and arrangedas to receive a flat wick when folded together in a peculiar mannerherein shown, and confined in theproper position by means of adividingplate, also hereinafter described, whereby the toothed wheelsoperating upon the folds of the wick carry the wick up and around thecentral airtube so as to produce an Argand flame.

In the drawing, Figure 1 is a vertical section of a burner containing myimprovement. Fig. 2 is an elevation of the same. Fig. 3 is a verticalsection of the central air-tube, showing the guide for spreadingthewick; and Fig. 4 is a horizontal section through .t w, showing themanner in which the wick is folded in the wick-tube.

I have omitted arrangements for holding a chimney, as my invention haslno reference to that part of a burner.

a represents an ordinary exterior shell of an Argand-lamp burner, thelower end of which is fitted to screw into the collar of` the lamp. b isthe interior air-tube, also of common construction, With an air-inlet,c, at the lower end. d is a wick-tube constructed at the lower endsimilar to ordinary tubes for using flat wicks, except that there is adividin g-plate, d', placed withinl the tube, substantially as shown inFigs. 1, 2, and 4, for the purpose of keeping the wick in the requiredposition, so that the toothedwheels e e will carry it up evenly. f

is a guide attached to the lower end of the airtube, or other convenientpoint above the toothed wheels, so as to spread open the folds of thewick, carrying the edges outward so that they will easily pass up aroundthe air tube.

I am aware that burners are in use in which a tia-t wick is folded andin which a divisionplate is used; but such wicks are folded at thecenter so that the edges shall come together at one edge of thewick-tube and at one edge of the folded wick, and the division-plate isplaced between the flat surfaces of the wick and at one edge of thewick-tube, and is intended 'to keep apart the flat surfaces of the wick.In my wick-tube it will be seen that the dividing-plate is placed at thecenter of the tube and at right angles with the iiat surfaces of thewick, the wick being folded so that' Witnesses:

S. W. OWEN, HENRY ORTH.

